Period

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World War two poster 'Safety Security Loose Talk'
ARP18A30_344

World War two poster 'Safety Security Loose Talk'

American propaganda poster depicting the risk of careless talk,, during World war two 1941
ARP17A13_496

American propaganda poster depicting the risk of c...

Republican Propaganda poster during the Spanish Civil War.
ARP17A04_423

Republican Propaganda poster during the Spanish Ci...

Republican propaganda warning during the Spanish Civil War
ARP17A05_325

Republican propaganda warning during the Spanish C...

Balloon 'Ville d'Orleans' after leaving Gare du Nord during siege of Paris during Franco-Prussian War
ARP07094_390000740

Balloon 'Ville d'Orleans' after leaving Gare du No...

Balloon ascent from Gare du Nord, Paris, at night, to carry dispatches out of besieged city during Franco-Prussian War
ARP07094_390000739

Balloon ascent from Gare du Nord, Paris, at night,...